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UNI to JSI: distance & flight time
Union Island (Union Island International Airport) → Skiathos (Skiathos Island National Airport)
5,402 mi
8,693 km · 4,694 nm
11h 3m
estimated nonstop flight time
+7h
time difference · heading northeast
See live UNI→JSI fares Phone-only fares on this route — call free
Flight time details
5,402 miles nonstop takes roughly 11h 3m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- UNI — Union Island International Airport · Union Island, Saint Vincent and the Grenadines
- JSI — Skiathos Island National Airport · Skiathos, Greece
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near UNI
- CIW · Canouan Airport8 mi away
- MQS · Mustique Airport25 mi away
- BQU · J F Mitchell Airport29 mi away
- SVD · Argyle International Airport42 mi away
Near JSI
- VOL · Nea Anchialos Airport38 mi away
- SKU · Skiros Airport55 mi away
- LRA · Larisa Airport64 mi away
- ATH · Eleftherios Venizelos International Airport89 mi away
Frequently asked questions
How far is UNI from JSI?
The flight distance from Union Island (UNI) to Skiathos (JSI) is 5,402 miles (8,693 km, 4,694 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UNI to JSI?
A nonstop flight takes about 11h 3m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Union Island and Skiathos?
Skiathos is 7 hours ahead of Union Island.
What is the cheapest way to fly from UNI to JSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UNI–JSI that never appear on search engines, with no booking fees.